The Bank of England has opened a review into the rapid rise of Asia equity exposures held by London-based investment banks. The move aims to prevent the buildup of overly concentrated positions focused on a small number of companies connected to artificial intelligence (AI), the Financial Times reports.
Background: why exposures have grown quickly
Major global investment banks typically finance hedge funds and other institutional clients’ Asia equity purchases through their London operations. Rising valuations of companies serving the AI ecosystem have driven a boom in this previously niche market: client portfolio values have increased markedly, encouraging higher leverage and more borrowing by market participants.
Examples and market volatility
Clients have heavily targeted key semiconductor and AI-related names such as SK Hynix of South Korea, Taiwan Semiconductor Manufacturing Company (TSMC), and China’s Cambricon Technologies. Investor demand is illustrated by CXMT, a Chinese memory-chip maker whose shares rose 466% on their Monday Shanghai IPO, briefly lifting its market value above Hong Kong’s Tencent. At the same time these stocks are highly volatile: SK Hynix’s share price fell roughly 15% on Tuesday, erasing more than $100 billion of the company’s market value in a single day.
Regulatory concerns
The Prudential Regulation Authority (PRA) has launched targeted checks into banks’ London principal-broker activities to determine whether they have taken on excessively concentrated Asia equity exposures. Regulators are particularly focused on whether positions are concentrated in a few AI-related names and whether clients have accumulated hidden risks via options. There is also concern that some trading is funded by retail Asian investors, who may rapidly liquidate positions under market stress.
Possible supervisory responses
Depending on the review’s findings, the Bank of England could send formal letters to banks’ heads of risk. The regulator might also convey its concerns publicly through senior speeches or address the sector directly in supervisory meetings. If excessive risk-taking is identified, the PRA could raise mandatory liquidity ratios for the banks involved.
Why this matters
The area is highly profitable: Asia-derived revenues may this year exceed European revenues at several global banks, including Goldman Sachs, JPMorgan Chase and Morgan Stanley. However, rapid losses on leveraged positions pose significant risks to lending banks and could precipitate client defaults.
Conclusion
The Bank of England and the PRA’s targeted review of London principal-broker activity seeks to map the scale and concentration of AI-related Asia equity exposures, the degree of leverage and any hidden option- or retail-funded risks, and to determine whether supervisory action is needed to protect financial stability.
